Improvement in table-leaf supports



UNITED STATES I PATENT OEEIcE.

WILLIAM E. nALY,Yor PERU, INDIANA.

IMPROVEMENT lN TABLE-LEAF SUPPORTS.

Speciiication forming part of Letters Patent No. 209,235, dated OctoberQ2, 1878 March 12,1878.

i' To all whom 'it may concern:

Be it known thatI, WILLIAM F. DALY, of the city of Peru, county ofMiami, and State of Indiana, have made a new and useful Improvement inTable-Leaf Supports, of which the following is a specification:

The nature and object of this invention are to cheapen the cost ofproduction, and .improve the device as a whole.

The irst part of my invention consists in a novel construction of thelocking-bolt and the plate that supports it, so that said bolt containswithin itself the spring that actuates it, and so that said plate formsa complete guide and support for said bolt, and also forms a keeper forthe free end of the supportingarm.

The second part of my invention relates to the novel construction of thesupporting-arm, whercby'it serves to form, in connection with thelocking-bolt, a stop for preventing the leaf from swinging and rattlingwhen the table is moved or jarred, and so that said arm can be cast fromany suitable metal in complete form, and united with the other parts ofthe holder or support without any subsequent ttin g.

Another part of my invention consists in a novel construction of thehinged support for the stationary end of the supporting arm, whereby thehinge may be applied to tables of dili'erent construction without anychange of the construction of the hinge, and in either case admits ofall the parts that are made of cast metal being cast so complete as torequire no additional fitting to render them ready for use.

I will now proceed to give a full and exact description7 so that othersskilled in the art can make and use my invention, reference being had tothe accompanying drawing, making a part of this specification.

The letters of reference marked thereon denote the parts referred to bythe same letter in the written part of this specification.

Figure 1 of the drawings shows anl outline perspective view of a devicelembodying my invention; and Figs. 2 and 3 are detached sections of thesame, in which` R is the table-leaf. S is the stationary part of thetable, and Tis a section of the side rail of the bed or frame of thetable..

application filed A represents a metal plate, fastened to the table-leafB, and having in its inner face two deep grooves, B and C, crossing eachother at right angles. The groove C cuts the plate A in two parts, andthese parts are connected by the bridge WV. y Through this bridge thesupporting-arm D passes'when the leaf R is let down, and this bridgeserves as a guide and keeper for the outer or free end of the arm whenthe leaf is raised.

The groove B is recessed into the plate A, which is made long in thedirection of the groove B, so as to form a sufficient guide and supportfor the locking-bolt E, and so as to avoid the necessity of any othersupport for the bolt E. The outer end of this bolt is provided with aknob, or any suitable handle, by which it may be worked, and the innerend is enlarged, so as to give it strength where it engages with thelocking-arm D.

A groove is formed in the central part of the bolt E to receive thecoiled spring F. The office of this spring is to return the bolt E to alocking position with the arm D. One end of this spring is attached tothe .stud H in the outer end of the groove in the bolt E, and the otherend of this spring is attached to the stud l. This stud is connectedwith the plate Ain the bottom of the groove B, and projects through aslot in the bottom of the groove in the bolt E.

The arm D is made broad at the stationary end, and is reel-shaped wherethe eye J is formed. This eye receives the hook on the plate 7c, and theypoint of the hook projects slightly forward of the inner face of theplate 7c, so as to enter slightly the face of the rail T, to which theplate k is fastened, so that the -plate k can be fastened with a singlescrew near its lower end; but to enable thissupport to be used on tablesthat have no side rail T to which the plate 7a can be fastened, Iconstruct the stud L. This stud I attach to the table S in the place ofthe rail T; and to enable the hooked plate k to be used in connectionwith the stud L, I construct this stud with the groove c. vThis groovereceives and supports the point of the hook laterally.

On the face of the plate 7c is a flange, h. This flange is fastened tothe table S, and a lrecess, f, is formed at the bottom of the stud L toreceive the flange h, so that When the l stud L is fastened in itsplace, as described, it will co-operate with the hooked plate 7c t0 forma hin ge for the arm D Without the use of the rail T, and no change inthe construction ot' the parts is required to form either hinge.

The arm D is slightly curved and formed With the shoulder o at its freeend. Another shoulder is formed at m. This shoulder engages with thebolt E when the table-leaf is let down, and holds it from swinging'.

I am aware that table-leaf supports havin g curved and straight arms,made both rigid and pivoted, with their free ends abutting againstlocking-bolts, are old, and do not claim such devicesl` broadly.

WILLIAM F. DALY.

Witnesses SHEPHERD H. WHEELER, LAWRENCE E. WHEELER.

